CVE-2024-42118

Kernel memory disclosure via negative stream index

Published Jul 30, 2024 · Updated May 11, 2026

An out-of-bounds read in the Linux kernel AMD display driver 4.15 through 6.9.8 allows local users to disclose kernel memory. resource_stream_to_stream_idx returns -1 when no stream is found, and that invalid result is used as an array index instead of being rejected. Reachability requires a local low-privileged user to exercise the AMD display path with no matching stream; reliable write or crash impact is undisclosed.

CVSS severity7.8
High
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

An out-of-bounds read in the Linux kernel AMD display driver 4.15 through 6.9.8 allows local users to disclose kernel memory. resource_stream_to_stream_idx returns -1 when no stream is found, and that invalid result is used as an array index instead of being rejected. Reachability requires a local low-privileged user to exercise the AMD display path with no matching stream; reliable write or crash impact is undisclosed.

The record

CVE
CVE-2024-42118
Published
Jul 30, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-125
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 30, 2024CVE publishedPublication date reported by the CVE source.
  2. May 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.15
  2. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <3ac31c9a707dd1c7c890b95333182f955e9dcb57
  3. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <a76fa9c4f0fc0aa6f517da3fa7d7c23e8a32c7d0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.15; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <3ac31c9a707dd1c7c890b95333182f955e9dcb57; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <a76fa9c4f0fc0aa6f517da3fa7d7c23e8a32c7d0

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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